7 common problems associated with old homes


Whether you live in an older home or are considering buying or remodelling one, there are old-house problems you should familiarise yourself with. Some may be seen as mere nuisances (charming even), but others can be downright dangerous. Before you take the plunge, get to know the signs and costs associated with the repair of some common problems.

First, just what is an older home? That’s hard to define. Anything 30 years or older definitely qualifies as an older home, in which some of the following problems may materialise, but clearly there is no magic number. 

Homes age slowly, and most of the potential problems noted in this story gradually accrue. Continuous maintenance can greatly impact on a home’s life, as can the original quality of construction, but the older a home is, the more likely you are to find issues impacting its liveability and even safety.

1. Foundation issues

If the floor is uneven to an extent you can easily see and feel while walking in the home, the foundation certainly requires a thorough inspection by a structural engineer. But there are less obvious signs that commonly manifest themselves inside a home too. 

Doors and windows that stick or do not latch properly can be caused by foundation issues, as can plasterboard cracks, especially over doors and windows. By executing a quick exterior inspection, you can check for bulges in foundation walls, or any section that does not appear plumb. You can also inspect the foundation for chipping and flaking, and if you see any, use a screwdriver to confirm the hardness of the concrete.

Hairline cracks in concrete are not usually indicative of a major problem, but an inspection by a certified structural engineer is the only way to know for sure whether something is an issue. Repairs to a foundation can be quite affordable, but if serious problems exist the cost will increase considerably, if they can be fixed at all.

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2. Leaking roof 

Water intrusion is the death of a house over time, so the soundness of a roof is critical to the health of old and new structures.

From the interior of the home, water spots on the ceiling are an obvious sign of water intrusion, but this is not always indicative of roof problems. Plumbing leaks and window leaks can also result in these stains.

Water spots on exterior walls can be a sign of flashing issues on the roof, and a quick inspection of the roof shingles or tiles can reveal common problems, such as unsecured flashing, cracked shingles, cupping and missing tiles. A quick inspection of the attic insulation for signs of moisture, and a search for daylight under the roof boards, is also worthwhile.

The cost to repair or replace a roof varies greatly, so if this is necessary, you should get an estimate from a local builder.

3. Antiquated features 

The Stucco ceiling (also known as a cottage cheese ceiling) was once considered a modern touch. Today? Not so much. Luckily, these ceilings can be removed. The downside is that this can cost in the thousands for a small job, and significantly more if the finish contains asbestos, which it might. A knowledgeable contractor will know if testing is required in your case.

Other issues, like out-of-style paint colours, fixture finishes, cabinets and benchtops, all will result in costs to modernise. Painting is relatively easy, and even replacing fixtures can be a quick, rather painless update. But if there are significantly outdated cabinets, benchtops and floor and shower tiles, you might have a high-budget renovation job on your hands.

Other common problems to consider include outdated plumbing and electrical systems, which can be difficult to determine without a thorough inspection by a professional.

4. Poor drainage and waterproofing 

What is that musty smell in the basement? Probably mould. Back in the old days, neither underfloor drainage nor perimeter drainage was provided in a manner equivalent to what is done today. With waterproofing of foundation walls and slab floors, it’s the same story. 

Issues usually do not materialise in just a few years, but if your home is 50 or more years old, the perimeter and underfloor drainage is likely laughably insufficient by today’s standards. Unless it has been resolved and updated, is very likely to pose a problem at some point — if it hasn’t already. For many older homes, perimeter and underfloor drainage was not provided at all.

You might see signs of mould on the walls of an old home, but more often you will smell the musty gasses released by mould hidden in walls, attics and underfloor framing. Much has been written about the dangers of mould to the health of a structure and, more important, to its inhabitants. 

If you smell the noxious, gassy byproduct of the mould anywhere, consider a thorough inspection by a professional. This can potentially be a major issue, as the cost to remove mould and properly install new drainage and waterproofing in a very old structure sometimes is not economically feasible.

5. Outdated layouts 

Petite kitchens, tiny bedrooms, narrow hallways and ladder-like stairways are all examples of old-world charm, but keep in mind there may be reasons the modern age left these trends in the rearview mirror. If you’re planning to update an old home’s design, be sure to seek the advice of both an architect and a builder before jumping in. A good architect can tell you what can be done, while a good builder can estimate what that conceptual plan might cost.

Work with a remedial home builder; or look for an architect who can manage the design and construction process of the renovation.

6. Infestations 

Don’t call the ghost hunters just yet. You may hear footsteps in the attic, but believe it or not, a spectral being may not be responsible. Termites are a possibility, for sure, but other lovely pests often harbouring in nooks and crannies of old homes include bees, termites, wasps, ants, birds and rodents of every kind. These critters can do serious damage to the structural integrity of a home, as well as to the mechanical systems. Signs of rodents should be investigated thoroughly underfloor and in the attic.

7. Old windows 

Old windows and doors can be a major intrusion point for water, resulting in dry rot and the mould issue described above. If poorly flashed or failing windows have been leaking for some time, properly replacing them can be a major job that includes work on the exterior facade of the home, reframing some wall and underfloor sections, and interior work, not to mention possible mould mitigation.

Look carefully at old windows on old homes for signs of staining, mould or other damage. The allure of a home with a past, and especially a historically relevant past, can be hard to resist. Just be sure you listen carefully to the messages the home is trying to tell you. That way, you and your home can enjoy a positive future.

Author bio:

Matt Clawson is a Houzz contributor. Realtor, home builder, project consultant, and writer. Loves sensible style.

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